# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

#

# This file is part of CubicWeb.

#

# CubicWeb is free software: you can redistribute it and/or modify it under the

# terms of the GNU Lesser General Public License as published by the Free

# Software Foundation, either version 2.1 of the License, or (at your option)

# any later version.

#

# CubicWeb is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

# details.

#

# You should have received a copy of the GNU Lesser General Public License along

# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

from __future__ import with_statement

from logilab.common.testlib import TestCase, unittest_main, mock_object

from cubicweb.devtools.testlib import CubicWebTC

from cubicweb.server.session import _make_description, hooks_control

class Variable:

    def __init__(self, name):

        self.name = name

        self.children = []

    def get_type(self, solution, args=None):

        return solution[self.name]

    def as_string(self):

        return self.name

class Function:

    def __init__(self, name, varname):

        self.name = name

        self.children = [Variable(varname)]

    def get_type(self, solution, args=None):

        return 'Int'

class MakeDescriptionTC(TestCase):

    def test_known_values(self):

        solution = {'A': 'Int', 'B': 'CWUser'}

        self.assertEqual(_make_description((Function('max', 'A'), Variable('B')), {}, solution),

                          ['Int','CWUser'])

class InternalSessionTC(CubicWebTC):

    def test_dbapi_query(self):

        session = self.repo.internal_session()

        self.assertFalse(session.running_dbapi_query)

        session.close()

class SessionTC(CubicWebTC):

    def test_hooks_control(self):

        session = self.session

        self.assertEqual(session.hooks_mode, session.HOOKS_ALLOW_ALL)

        self.assertEqual(session.disabled_hook_categories, set())

        self.assertEqual(session.enabled_hook_categories, set())

        self.assertEqual(len(session._tx_data), 1)

        with hooks_control(session, session.HOOKS_DENY_ALL, 'metadata'):

            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)

            self.assertEqual(session.disabled_hook_categories, set())

            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))

            session.commit()

            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)

            self.assertEqual(session.disabled_hook_categories, set())

            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))

            session.rollback()

            self.assertEqual(session.hooks_mode, session.HOOKS_DENY_ALL)

            self.assertEqual(session.disabled_hook_categories, set())

            self.assertEqual(session.enabled_hook_categories, set(('metadata',)))

        # leaving context manager with no transaction running should reset the

        # transaction local storage (and associated cnxset)

        self.assertEqual(session._tx_data, {})

        self.assertEqual(session.cnxset, None)

    def test_build_descr(self):

        rset = self.execute('(Any U,L WHERE U login L) UNION (Any G,N WHERE G name N, G is CWGroup)')

        orig_length = len(rset)

        rset.rows[0][0] = 9999999

        description = self.session.build_description(rset.syntax_tree(), None, rset.rows)

        self.assertEqual(len(description), orig_length - 1)

        self.assertEqual(len(rset.rows), orig_length - 1)

        self.failIf(rset.rows[0][0] == 9999999)

if __name__ == '__main__':

    unittest_main()